00257nam a2200097Ia 4500008004100000082001500041100001800056245004200074260003500116300000800151140113s9999    xx            000 0 und d  a631.4   J1  a"Puri, A.N. "  aSoil Science: An elemenrary text book  a1951bMinerva book ShopcSimla  a156